摘要
文章运用能值理论分析方法,对黑龙江省农垦北安局农业生态经济系统发展现状进行研究分析。研究结果表明,目前北安局农业生态系统投入的能值总量为2.76×1021sej,总能值产出为7.99×1021sej。能值可持续指数ESI值为1.02,为发展型经济,可持续性较好,但ESI接近1,说明系统发展对不可更新资源利用较大,还远未达到高产投比状态,具有较大的发展潜力。因此,应当在生态农业建设时,因地制宜,进一步进行农业结构调整,促进农业经济的可持续发展。
This paper studied and analyzed the present development status of agricultural eco-economic system in Beian Reclamation Bureau of Heilongjiang Province via applying the theory of emergy analysis.Results show that current total investment emergy of agricultural eco-economic system is 2.76×1021sej and the total output emergy is 7.99 × 1021 sej.Emergy Sustainability Index（ESI） is 1.02,illustrating developmental economy and good sustainability.But ESI is close to 1,indicating that the system is highly depend on non-renewable resources and still has a large potential for development.Therefore,agricultural structure should be further adjusted according to local conditions in the construction of ecological agriculture so as to promote the sustainable development of agricultural economy.
出处
《环境科学与管理》
CAS
2012年第11期147-150,167,共5页
Environmental Science and Management
关键词
农业生态系统
能值分析
可持续发展
农垦北安局
agricultural eco-economic system
emergy analysis
sustainable development
Heilongjiang Beian Reclamation Area
